370z MODS!!

Jumanjiz34

hey guys im fairly new to the car scene and i want to focus my 370z first on performance then stance. so my question is what mods would you need before doing Revup tune, i dont want to retune so i just want to know what i would need for the most hp.
so far i have
-tomei full cat back exhaust
-tomei test pipes

and im planning on getting
-tomei y pipe
-stillen gen 3 intakes
-mishimoto radiator/oil cooler


so what else would i need besides what i listed ?
i dont know what cams and injectors are or if i even need them. etc so if you guys can please help me out and explain to me these things and what i need to push the most hp with the revup i would love the feedback.